Regenerative furnace.



L. L. KNOX. REGENERATIVE FURNACE.

APPLIGATION FILED APR.17. 1911.

Patented Aug. 19, 1913.

LWYQQEG,

3 SHEETS-SHEET 2.

R O T N E V N s E s s E N n w L. L. KNOX.

REGENERATIVE FURNACE APPLICATION FILED APR. 17, 1911 1,070,486, Patented Au 19, 1913.

3 SHEETSSHEET 3.

WITNESSES W%w -6@mm Live View To oi' when 155' may concern Be it lnmwn ill i, LUTHER Iii. Knox, of l ivnlon .fillegheny county, Pennsylvania, have invent-ed a, new and useful improvement in, Regenernire linrnuees, of which the following is clear, and exact dei/ion. reference oeing had to the accomjin dmwings. forming part of this a i n Wllll1 "vertical see ion of one end 'eneraiive open ieeriih furnace enif invention; l i2 is a section on -11 of Fig. 1 Fig.3 is a er View .l'iowing ig. is a sect i ii; and

showing the gas port and cooler.

my invention has relation to regenereiiv furnaces, and designed to provide a novel eons-iinotion the gas port am. of the sepnrai;

the

arch. he gas and air ports, whereby a l e ()iTQCillX Glj cooled, and. )er's most snlojee lo destruw i no readily removed one placed.

nine of my invention wi l he heel; rood by reference lo the aoooinpnnying drawings. in which I. have shown th preferred einhmlinient $1101.05, and which will now he described, it being premised, hem-Wei, that various changes m y he made in. the details of construction and arrangement of the parts by those skilled in the art Without departing from the spirit and scope of my invention defined in he appended claims.

in the drawings, the nume 'ul 2 the frame of ihe fllllfgaofi. 3 the refractory wall thereof. and :1 portion oi ti e lll'lllCQ h urlvh 5 designates the air nptnkes, which. lead upwardly from the 'osmrl slag poeln one of which is indie-Med il (5. and which have the usual regenornior eonneefaions.

is the 'upigilie leading u inmrdly from i" 5 arranged centre. in he e pocket; 8. e 16;

ihe uptake 7.

l0 eeslgz'nrms a. cooling box which serced transversely oi the lumen between he air and gas uptakes and the body of Elie Sneoifinebion of Letters l-ateniz.

ferns. as bestshown in. Fig. exlonding forming" i inner end portion 7 or the gas port. i /ode have shown this opening as being surrounded on all four sides by a '\\'L har-tzonizriiiiiiig space, llS lootiom portion may be otherwise formed. 2 side roof and bottom Walls of this port opening are provided with n. i'eit'rzietory lining 12. i shown as suppoliecl upon the rails l ting; upon. the itrauneworl j 2 he furnace, and the entire box is capable oi? being Withdrawn from one side of the fnrneo carrying with in the gas port. 'lhe spares helweon each side of (he box and the zidjzioeni wells of the air ports and the body oi the furnace preferably have :1 filling i i of sand or other suitable material. The host is also neiemhly provided 1%; one end ing the host.

' :ooiing mnnpzirinienis oi the box A iLClA/Ll over the Joel arch of the port I, rid also below ihe iioor of the port; if there is a writer space hrovided below the helium well of said port. The enl'ire box is designeo lo he i pi. filled with Water, which may he sop 'ilied h-y any sniizihle arrangement of eirenlnling pipes. In the drawings have shown the box as lino/inn; a plurality of ionnil'ndinnlly unending; inlet pipes 16, provided will: verl'irnl and lrz nsversely eX- iz-enillno' spray hrnneln'zs 17, these spray branches heir ore? r 'ly located adjacent to the walls oi the port 7. The oll'hrlte conneoi'ions for ighe box are shown at 18.

1:) indicates a CllBilDOlih conneiiiion at the lower portion. of 'ihe box.

The side walls oi the upper portion 01'? the gas upiehe 'Z' are shown as proiecied by hollow coolers :20, which are inserted from the end of the furnace between ihe inner side ill} nix nptzahes and the lateml Walls hefie ing a s iny pipe therein. nis cooler this is not essential, as

24 is also shown as having a door 26 normally filled with a refractory block filling 27 The wall 23 is made separatelyuemovable, as indicated at 21. The gas uptake has the inward extension '2 at its upper end, which communicates with the gas port 7. The roof of the uptake and its extension are formed by the refractory wall 28, having a removable cooler 29, which is inserted from the end of the furnace, and

which can be readily removed therefrom. This cooler has the depending short side legs 29 which embrace the u per portion of the sides of the uptake an extension. A

' covering 30 of sand, or other suitable reciently and thoroughly cooled by a large body of cooling fluid, which isalso in a position to cool the end walls of the furnace and the inner walls of the air uptakes. The upper portion of the gas uptake, is also effectively cooled by the side coolers 20, the end cooler 24, and the arch cooler 29. All of these coolers may be readily removed and replaced whenever necessary.

While I have shown my invention as applied to but one end of the furnace, it will be understood that the construction at both ends is preferably the same. I do not, however, wish to limit myself to the precise construction and arrangement of the parts which I have described, since obviously the invention is applicable to furnaces differing somewhat in construction to the furnace illustrated, and which will require a corresponding change in the details of the construction and arrangement of the coolers.

What I claim is 1. A port-forming and cooling structure for regenerative furnaces, said structure comprising a hollow metal casing having a port opening extending through its central portion, and having an elongated lateral extension at each side of said opening, sub stantially as described.

2. A port-forming and cooling structure for regenerative furnaces, said structure comprising a hollow metal casing having a port opening extending through its central portion, and having an elongated lateral extension at each side of said opening, said" extensions being interiorl connected by water passages or spaces a jacent to the port opening, substantially as described.

3. A port-forming,and cooling structure for regenerative furnaces, said structure comprising a hollow metal casing having a I port opening extending through its central portion, and having an elongated lateral extension at each side of said opening, each of said extensions being longer than the transverse width of the port opening, substantially as described.

4. A port-forming and cooling structure for regenerative furnaces, said structure comprising a hollow metal casing having a port opening extending through its central portion, and having an elongated lateral extension at each side of said opening, the

structure also having means at the end thereof to be engaged by a removing device, substantially as described.

5. A. pert-forming and cooling structure for regenerative furnaces, comprising a hol-' low closed metal box having a port opening extending therethrough, the box having a length at right angles to the axis of said opening greater than the length of said opening in the direction of its axis, and greater than the vertical height of the box, and the box having water-circulating connections, substantially as described.

and gas uptakes and air and gas ports, a port-forming and cooling structure, com- 6. In a regenerative furnace having air prising a hollow box or casing extending Y transversely across the furnace and having an opening therethrough which forms the furnace'or nose end of the gas port, the hollow end portion of the box being extended laterally between the air uptakes and the hearth portion of the furnace, substantially as described;

7. In a regenerative furnace having air and gas uptakes and air and gas ports, a

port-forming and cooling structure, comprising a hollow box or casing extending transversely across the furnace and having an opening therethrougli which forms the furnace or nose end of the gas port, the hollow end portion of the box being extended laterally between the air uptake and the hearth portion of the furnace, said box being insertible and removable through an opening at the side of the furnace, substantially as described.

8. In a regenerative furnace having air and gas uptakes and air and gas ports, a port-forming and cooling structure, comprising a hollow box or casing extending transversely across the furnace and having ;an opening therethrough which forms theinsertible and removable through an opening at the side of the furnace, together with tracks upon which the structure is mounted for movement'in inserting and removing it, substantially as described.

'9. A port forming and cooling structure for regenerative furnaces, said structure comprising a hollow metal casing having an arched POIlLOPQDIDg extend ng through its central portion and having at each side of said central portion an elongated hollow lateral extension, said structure being seated in an opening formed between the gas and air uptakes and the body portion of the furnace; Substantially as described.

10. A regenerative furnace having tracks extending transversely between the uptakes and the hearth portion of the furnace, and a port-forming and cooling structure mounted for movement on said tracks into and out of operative position throughv an opening at the side of the furnace, said structure comprising a transversely elongated hollow metal box or casing with a port-opening formed thercthrough at substantially right angles to the length of the box, substantially as described.

11. A regenerative furnace having removable vertically arranged coolers intermediate the side walls of its gas and air uptakes, and a filling of loose refractory material adjacent to said coolers, substantially as de scribed.

12. A regenerative furnace, having an opening extending transversely therethrough between the gas and air uptakes and its hearth portion, said opening being entirely below the roof structure of the furnace, and

the

a hollow metal box 'removably inserted in said opening, said box having an opening therethrough in line with and forming a continuation of the furnace gas port and having its hollow end portions lying between the air uptakes and the hearth portion of the furnace, and connections for circulating a cooling medium through the box, substantially as described. 4

,13. In a regenerative furnace having air and gas uptakes and air and gas ports, a port-forming and cooling structure, comprising a hollow box or casing extending transversely across the furnace and having an opening therethrough which forms the furnace ornose end of the gas port, the hollow end portion of the box being extended laterally between the air uptakes and the hearth portion of the furnace, and the gas port back of the said box having a cooler in its 'top wall or arch, substantially" as described.

In testimony whereof, I have hereunto set my hand.

LUTHER L. KNOX.

Witnesses Gno. B. BLEMING, R. M. CONWAY. 

